Darrick J. Wong e1a4e37cc7 xfs: try to avoid blowing out the transaction reservation when bunmaping a shared extent ... In a pathological scenario where we are trying to bunmapi a single extent in which every other block is shared, it's possible that trying to unmap the entire large extent in a single transaction can generate so many EFIs that we overflow the transaction reservation. Therefore, use a heuristic to guess at the number of blocks we can safely unmap from a reflink file's data fork in an single transaction. This should prevent problems such as the log head slamming into the tail and ASSERTs that trigger because we've exceeded the transaction reservation. Note that since bunmapi can fail to unmap the entire range, we must also teach the deferred unmap code to roll into a new transaction whenever we get low on reservation. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> [hch: random edits, all bugs are my fault] Signed-off-by: Christoph Hellwig <hch@lst.de>		2017-06-19 08:59:10 -07:00
..
xfs_ag_resv.c	xfs: use per-AG reservations for the finobt	2017-01-25 07:49:35 -08:00
xfs_ag_resv.h	xfs: set up per-AG free space reservations	2016-09-19 10:30:52 +10:00
xfs_alloc.c	xfs: create a function to query all records in a btree	2017-04-03 15:18:17 -07:00
xfs_alloc.h	xfs: create a function to query all records in a btree	2017-04-03 15:18:17 -07:00
xfs_alloc_btree.c	xfs: plumb in needed functions for range querying of the freespace btrees	2017-04-03 15:18:17 -07:00
xfs_alloc_btree.h
xfs_attr.c	xfs: remove racy hasattr check from attr ops	2017-01-25 07:53:43 -08:00
xfs_attr_leaf.c	xfs: ignore leaf attr ichdr.count in verifier during log replay	2016-12-09 16:49:47 +11:00
xfs_attr_leaf.h	Merge branch 'xfs-4.10-misc-fixes-3' into for-next	2016-12-07 17:42:30 +11:00
xfs_attr_remote.c	xfs: rename flist/free_list to dfops	2016-08-03 11:19:29 +10:00
xfs_attr_remote.h
xfs_attr_sf.h	xfs: move struct xfs_attr_shortform to xfs_da_format.h	2016-02-08 15:00:01 +11:00
xfs_bit.c	libxfs: Optimize the loop for xfs_bitmap_empty	2016-01-04 16:10:19 +11:00
xfs_bit.h
xfs_bmap.c	xfs: try to avoid blowing out the transaction reservation when bunmaping a shared extent	2017-06-19 08:59:10 -07:00
xfs_bmap.h	xfs: try to avoid blowing out the transaction reservation when bunmaping a shared extent	2017-06-19 08:59:10 -07:00
xfs_bmap_btree.c	xfs: simplify validation of the unwritten extent bit	2017-04-25 09:40:41 -07:00
xfs_bmap_btree.h	xfs: simplify validation of the unwritten extent bit	2017-04-25 09:40:41 -07:00
xfs_btree.c	xfs: fix unaligned access in xfs_btree_visit_blocks	2017-05-25 09:42:25 -07:00
xfs_btree.h	xfs: create a function to query all records in a btree	2017-04-03 15:18:17 -07:00
xfs_cksum.h	xfs: optimise CRC updates	2016-12-05 14:40:32 +11:00
xfs_da_btree.c	xfs: fail _dir_open when readahead fails	2017-02-02 15:13:58 -08:00
xfs_da_btree.h	xfs: fail _dir_open when readahead fails	2017-02-02 15:13:58 -08:00
xfs_da_format.c	xfs: kill xfs_dir2_inou_t	2016-07-20 11:48:31 +10:00
xfs_da_format.h	xfs: fix attr shortform structure alignment on cris	2016-08-03 10:59:42 +10:00
xfs_defer.c	xfs: defer should abort intent items if the trans roll fails	2016-10-24 14:21:18 +11:00
xfs_defer.h	xfs: implement deferred bmbt map/unmap operations	2016-10-04 11:05:44 -07:00
xfs_dir2.c	xfs: fix xfs_mode_to_ftype() prototype	2017-01-18 12:39:21 -08:00
xfs_dir2.h	xfs: fix xfs_mode_to_ftype() prototype	2017-01-18 12:39:21 -08:00
xfs_dir2_block.c	xfs: print name of verifier if it fails	2016-01-04 16:10:19 +11:00
xfs_dir2_data.c	Merge branch 'xfs-4.10-misc-fixes-3' into for-next	2016-12-07 17:42:30 +11:00
xfs_dir2_leaf.c	xfs: print name of verifier if it fails	2016-01-04 16:10:19 +11:00
xfs_dir2_node.c	xfs: verify free block header fields	2017-02-02 15:14:00 -08:00
xfs_dir2_priv.h	xfs: rework the inline directory verifiers	2017-04-03 12:22:20 -07:00
xfs_dir2_sf.c	xfs: rework the inline directory verifiers	2017-04-03 12:22:20 -07:00
xfs_dquot_buf.c	xfs: simplify xfs_calc_dquots_per_chunk	2017-04-12 08:42:51 -07:00
xfs_format.h	xfs: simplify validation of the unwritten extent bit	2017-04-25 09:40:41 -07:00
xfs_fs.h	xfs: implement the GETFSMAP ioctl	2017-04-03 15:18:17 -07:00
xfs_ialloc.c	xfs: Use xfs_icluster_size_fsb() to calculate inode chunk alignment	2017-02-16 17:20:38 -08:00
xfs_ialloc.h	xfs: rename flist/free_list to dfops	2016-08-03 11:19:29 +10:00
xfs_ialloc_btree.c	xfs: use per-AG reservations for the finobt	2017-01-25 07:49:35 -08:00
xfs_ialloc_btree.h	xfs: use per-AG reservations for the finobt	2017-01-25 07:49:35 -08:00
xfs_inode_buf.c	xfs: fix up inode validation failure message	2017-04-03 15:18:16 -07:00
xfs_inode_buf.h	libxfs: convert ushort to unsigned short	2016-11-08 11:55:48 +11:00
xfs_inode_fork.c	xfs: simplify validation of the unwritten extent bit	2017-04-25 09:40:41 -07:00
xfs_inode_fork.h	xfs: rework the inline directory verifiers	2017-04-03 12:22:20 -07:00
xfs_log_format.h	libxfs: convert ushort to unsigned short	2016-11-08 11:55:48 +11:00
xfs_log_recover.h	xfs: remove unused struct declarations	2017-01-30 16:32:25 -08:00
xfs_log_rlimit.c	xfs: move most of xfs_sb.h to xfs_format.h	2014-11-28 14:27:09 +11:00
xfs_quota_defs.h	xfs: wire up Q_XGETNEXTQUOTA / get_nextdqblk	2016-02-08 11:27:38 +11:00
xfs_refcount.c	xfs: try to avoid blowing out the transaction reservation when bunmaping a shared extent	2017-06-19 08:59:10 -07:00
xfs_refcount.h	xfs: try to avoid blowing out the transaction reservation when bunmaping a shared extent	2017-06-19 08:59:10 -07:00
xfs_refcount_btree.c	xfs: use the actual AG length when reserving blocks	2017-01-03 18:39:33 -08:00
xfs_refcount_btree.h	xfs: use the actual AG length when reserving blocks	2017-01-03 18:39:33 -08:00
xfs_rmap.c	xfs: implement the GETFSMAP ioctl	2017-04-03 15:18:17 -07:00
xfs_rmap.h	xfs: implement the GETFSMAP ioctl	2017-04-03 15:18:17 -07:00
xfs_rmap_btree.c	xfs: use the actual AG length when reserving blocks	2017-01-03 18:39:33 -08:00
xfs_rmap_btree.h	xfs: use the actual AG length when reserving blocks	2017-01-03 18:39:33 -08:00
xfs_rtbitmap.c	xfs: add a couple of queries to iterate free extents in the rtbitmap	2017-04-03 15:18:17 -07:00
xfs_sb.c	xfs: verify dirblocklog correctly	2017-01-24 12:23:33 -08:00
xfs_sb.h	xfs: remove unused function definitions	2016-02-08 14:58:07 +11:00
xfs_shared.h	xfs: define the on-disk refcount btree format	2016-10-03 09:11:18 -07:00
xfs_symlink_remote.c	xfs: print name of verifier if it fails	2016-01-04 16:10:19 +11:00
xfs_trans_resv.c	xfs: increase log reservations for reflink	2016-10-05 16:26:29 -07:00
xfs_trans_resv.h	xfs: increase log reservations for reflink	2016-10-05 16:26:29 -07:00
xfs_trans_space.h	xfs: reserve enough blocks to handle btree splits when remapping	2017-05-03 13:21:40 -07:00
xfs_types.h	Merge branch 'xfs-4.10-extent-lookup' into for-next	2016-11-24 11:41:59 +11:00